• High quality wireless smoke sensor detector alarm for home security

• Wireless technology uses radio frequency to transmit and receive messages

• Powered by 9V battery (not included), warning with alarm sound and light
  

• Alert and warn people stay far away from danger field when it detected smoke

• Ideal for house, shop, hotel, restaurant, office building, school, bank, library, computer house and storehouse etc.

Specifications:

• Materials: ABS + Plastic

• Power Supply: DC 9V

• Alarm Volume: 85dB

• Working Humidity: 10% ~ 90%